COLORADO
BADGER CREEK LOCALITY
SANGRE DE CRISTO FORMATION
PROBABLY MISSOURIAN
LOWER STEPHANIAN
UPPER SILESIAN STAGE
KASIMOVIAN EPOCH?
LATE PENNSYLVANIAN
(LATE CARBONIFEROUS)
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: PARAREPTILIA OLSON 1947
INFRACLASS: SAUROPSIDA HUXLEY, 1864
ORDER: COTYLOSAURIA COPE, 1880
SUBORDER: DIADECTOMORPHA Watson, 1917
Family: DIADECTIDAE Cope, 1880
Desmatodon hesperis
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: OPHIACHODONTIA NOVA
Family: OPHIACODONTIDAE Nopsca, 1923
Varanosaurus sp
INFRAORDER: EDAPHOSAURA NOVA
Family: EDAPHOSAURIDAE Cope, 1882
Ianthasaurus sp
Genus nova
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: HAPTODONTINAE Romer & Price 1940
Gen. sp indet.
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Gen. sp indet.
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